I'll never forget the run I had in this Z And it's good to see new metal in town, in the form of the 2 Turbos. Are the Dubai regd Continental and Cayenne Design Ed still around?

As Manish mentioned, those cars were present during the Supercar Event at Mumbai. The Cayenne GTS Design Edition's registration plates had 03/2012 mentioned on it so probably the carnet period gets over by March 2012, hence the car is gone. I have attached a pic of the same. Note 03/2012 on the plate.

Mods: Not hiding the registration plates as the pic was clicked at a public event with media coverage.

The Cayenne GTS Design Edition's registration plates had 03/2012 mentioned on it so probably the carnet period gets over by March 2012, hence the car is gone. I have attached a pic of the same. Note 03/2012 on the plate.

That sticker shows the expiry of Insurance its nothing related to the car being on carnet or not